The Estrogen Window is the Ultimate Guide To Discovering What Every Woman Over 40 needs to know!

Find out how to eliminate your confusion, calm your fears and get the help you need to be healthy, energized and hormonally balanced.

“I strongly encourage all midlife women and their physicians to read Dr. Seibel’s book, “The Estrogen Window,” which artfully explains and compiles the latest research on menopausal hormone therapy in an elegant and easy to understand fashion helping women to Be Strong, Be Healthy and Be in Charge!”

-Holly L Thacker MD FACP NCMP CCD
Director of the Cleveland Clinic Center for Specialized Women’s Health


Bonuses Available Until 11:59 pm Pacific Time April 15


  • Free one year subscription to the award-winning My Menopause Magazine ($24 value) and Free access to my latest ebook “Changes During the Change”  – Click here to access your free subscription and free ebook immediately.
  • 4 of Prevention magazine’s never sold to the public special articles
    • 50 Tips to Sleep Better Tonight
    • Easy Natural Ways to Drop Pounds, Regain Energy and Relieve Pain
    • Boost the Flavor, Boost Your Health – 18 Delicious Recipes
    • Walk Your Way to Thin – 4 Week Walking Plan
  • Sleep Tight: Music to Sleep To – 46 minutes of soothing award-winning music to help you sleep tight sent digitally to you ($12 value)
  • $25 Vital Choice Wild Seafood & Organics gift certificate on orders of $100 or more.


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In The Estrogen Window, Dr. Mache Seibel, international health expert and leading authority on women’s wellness and menopause, presents groundbreaking research that explains how every woman has a window of opportunity to begin estrogen replacement. This critically acclaimed book clears the confusion and provides easy to understand facts and tips like:

  • The safest time to take estrogen so you can lower the risk of breast cancer, heart disease, and dementia
  • How to minimizing menopausal symptoms such as hot flashes, night sweats, mood swings, lower libido, fractured sleep, brain for, irritability, and weight gain
  • Which estrogens and progestogens are safest
  • How long to take them
  • When it’s too late to take estrogen (hint – it’s different for each organ)
  • Which route of estrogen is best
  • Essential things to know about bioidentical and compounded estrogens
  • How to talk with your healthcare provider about hormone therapy and alternatives to estrogen

The Estrogen Window is the ultimate guide to remove your confusion, calm your fears and help you decide whether or not estrogen is right for you.


dronstollAbout the Author

Dr. Mache Seibel is a global leader in women’s wellness and menopause. He was a member of the Harvard Medical Faculty for 20 years and currently a Professor at the University of Massachusetts Medical School. Dr. Mache is Editor of My Menopause Magazine, Creator of Menopause Breakthrough System and recipient of multiple awards including the Best Doctors in America and the Media Award from the North American Menopause Society. Dr. Mache has been featured in People magazine, Discover magazine, Today, MSNBC, hosted PBS specials and appeared on many other media outlets. He is also a frequent keynote speaker for numerous organizations, businesses, and conferences. Dr. Mache and his wife live in Boston, Massachusetts.

Connect with Dr. Mache on Twitter and Facebook.




Praise for The Estrogen Window

Testimonials for The Estrogen Window

Dr. Mache Seibel does to estrogen and hormone replacement therapy what other breakthrough thinkers did to our fear of fats – debunk, educate and assure that there is a time and place for the vilified estrogen. A must-have in any woman’s book library.
Magdalena Wszelaki - Certified Nutrition Coach